1) Thanks to tips from y'all, I kept my eyes open the first time we see Tia Dalma's shack. The monkey immediately runs to a pair of boots on a bed--presumably worn by someone lying down, but you can't see. We are shown the monkey pawing at the boots in some distress twice. They are totally trying to prepare you for Barbossa coming back. My only question is, why does Tia Dalma already have Barbossa's body? I mean, I assume we'll find out in the third movie, but I still can't come up with anything on my own.
2) I am totally convinced that Tia Dalma is the woman Davy Jones loved. Jack takes a heart-shaped pendant that Tia Dalma has left on a table; it looks exactly like the heart-shaped lock on the chest and the heart-shaped music box. And when Tia Dalma is telling the story, she is constantly gesturing to herself. Go back and watch that part again--she's totally saying, "And that woman was me."
Also, I love "The Kraken" on the soundtrack, but it is whoa-awesome in the actual movie.